Gael keetschmae



(No Model.)

' C. KRETSCHMAR.

MECHANICAL MUSICAL INS'IRUMBN'I.l

Patented Mar. 29, 1887.

v UNITED STATES PATENT OFFICE.

CARL KRETSCHMAR, OF GCH-LIS, NEAR LEIPSIC, GERMANY.

MECHANICAL MUSICAL INSTRUMENT.

SPECIFICATIONiforming part of Letters Patent No. 360,163, dated March 29, 1887.

Application filed July 6, 1886. Serial No. 207,211.

To all wtont, it may concern:

Be it known that I, CARL KRETscHMAE, of Gohlis, near Leipsic, Germany, have invented a new and Improved Musical Instrument, of which the following specifi cation is a full, clear, and exact description.

This invention relates to a musical instrument of cylindrical form and in which the perforated innsic sheet is placed around the valve-pins in the forni of a drum. The musicsheet is clamped to a device to which rotary motion may be imparted, and thus the sheet is revolved around the valves to operate the same.

In the accompanying,drawings, Figure l is a vertical section on line x x, Fig. 2,7partly in side view, of my improved musical instrument. Fig. 2 is a horizontal section on line `1/ y, Fig. 1. Fig. 3 is a top view of the sheet-clamping device; Fig. 4, a Avertical section of a modiication on line z z, Fig. 5, partly in side view; and Fig. 5, a horizontal section on line in w, Fig. 4.

The letter A represents the base or case of the instrument, containing bellows B, operated from shaft a. The air from bellows B is forced into a chamber, D, from which it is conducted into channel E and acts on the sounding devices controlled by the valves located within an upwardly-projecting cylinder, A, whenever the valve-pins b come in contact with the 1nusic-sheetF,wound into the form of a tube around cylinder A. The sheet F is retained in its tubular form by means of' a hinged or jointed frame, d, having outwardly-project` ing teeth that engage the shaft c.

e is a head placed upon cylinder A', and between which and frame d the sheet F is v clamped. At the same time the head e serves (No model.)

to close channel E. The valve pins or levers b may be attached to a rail, f, connected with channel E, or may be separately attached toV such channel.

In use the sheet F is introduced between head e and frame d, and the latter is closed. The sheet is revolved by shaft a, while the bellows force air into channel E, and the operating-levers b cause the instrument to sound.

If desired, the cylinder may bemade to rotate while the music-sheet remains stationary. This construction is illustrated in Figs. I and 5. In these figures the music-sheet folded into a tubular form incloses the air-tube E, the valves g, and the operating-lever mechanism. All these parts are connected to a gearwheel, lz, rotated by screw-shaft a. The airtube E connects with the air chamber D, and is packed in such a manner at its lower end, R, that it is free to revolve. The musictube F is independent and stationary, and `is held in its tubular form `by a clamp, fi, while its lower edge is received by a groove, k. The entire instrument is of the shape of a pillar and is revolved within the music-tube F by Shaft a.

I claim as my inventionrllhe combination of base A, containing bellows B, and chamber D with air-channel E, cylinder A', tubular music-sheet F, toothed frame d, and head e, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence oftwo subscribing witnesses.

' CARL KRETSCHMA R.

Witnesses:

EDMUND BACH, RICHARD NRNBERGER. 

